Since World War II, in nearly every crisis, the United States Marine Corps has deployed projection forces, with the ability to move ashore with sufficient sustainability for prolonged operations. These forces have been organized into Marine Air Ground Task Forces (MAGTF), a combination of air, ground and support assets. MAGTFs are established for specific missions, or in anticipation of a wide range of possible missions. Combining air, ground and logistic assets maximizes the combat power of each of the war fighting elements. MAGTFs have long provided the United States with a broad spectrum of response options when U.S. and allied interests have been threatened and in non-combat situations that require instant response to crisis. Selective, timely and credible commitment of air-ground units have, on many occasions, helped bring stability to a region and sent signals worldwide to aggressors that the United States is willing to defend its interests, and it is able to do so with a significantly powerful force on extremely short notice.